公开(公告)号：US20080252370A1

公开(公告)日：2008-10-16

申请号：US12090278

申请日：2006-10-24

申请人： Byoung-Min Mun

发明人： Byoung-Min Mun

IPC分类号： H03F1/02

CPC分类号： H03F3/2173 ,  H03F1/0227 ,  H03F1/303 ,  H03F1/307 ,  H03F1/34 ,  H03F1/52 ,  H03F3/217 ,  H03F2200/03 ,  H03F2200/351 ,  H03F2200/504 ,  H03F2200/541

摘要： A digital audio signal amplifier and a digital audio signal amplifying method therefor are provided. More particularly, a digital audio signal amplifier in which both safety and power efficiency are achieved by integrating a switching mode power supply and a digital audio amplifier into one, and a digital audio signal amplifying method appropriate to the amplifier are provided. The digital audio amplifier includes: a pulse modulation unit generating a pulse modulated audio signal by pulse-modulating an input audio signal; a switching unit switching a DC voltage based on the pulse modulated audio signal; an insulation transformer transforming the output of the switching unit and outputting the result of the transforming; and a low-pass filter obtaining an audio signal corresponding to the input audio signal by low-pass filtering the output of the insulation transformer, and outputting the output audio signal. By integrating a switching mode power supply and a digital audio amplifier into one, the digital audio amplifier satisfies the insulation requirement and at the same time increases power efficiency.

摘要翻译： 提供了一种数字音频信号放大器及其数字音频信号放大方法。 更具体地，提供了一种数字音频信号放大器，其中通过将开关模式电源和数字音频放大器集成在一起来实现安全性和功率效率，以及适用于放大器的数字音频信号放大方法。 数字音频放大器包括：脉冲调制单元，通过脉冲调制输入音频信号产生脉冲调制音频信号; 开关单元，基于脉冲调制音频信号切换直流电压; 绝缘变压器转换开关单元的输出并输出变换的结果; 以及低通滤波器，通过对绝缘变压器的输出进行低通滤波，获得对应于输入音频信号的音频信号，并输出输出音频信号。 通过将开关电源和数字音频放大器集成为一体，数字音频放大器满足绝缘要求，同时提高功率效率。

公开(公告)号：US20060039572A1

公开(公告)日：2006-02-23

申请号：US11124091

申请日：2005-05-09

申请人： Byoung-min Mun

发明人： Byoung-min Mun

IPC分类号： H03G7/00 ,  H03F3/38

CPC分类号： H03F3/2173 ,  H03F1/523 ,  H03F2200/351

摘要： An apparatus and a method to limit a current by having different limiting references according to pulse widths of a current signal in an audio amplifier. The apparatus includes a pulse width modulator to generate a PWM signal by comparing an input audio signal and a reference signal, a power switching unit to switch a voltage source according to the PWM signal generated by the pulse width modulator, a current detector to detect a current signal flowing through a load by the voltage source supplied by the power switching unit, and a controller to apply different limiting values to different current levels according to pulse widths of the current signal detected by the current detector and to control the PWM signal generated by the pulse width modulator by comparing the applied limiting value to a current level value of the current signal detected by the current detector.

摘要翻译： 通过根据音频放大器中的电流信号的脉冲宽度具有不同的限制参考来限制电流的装置和方法。 该装置包括：脉冲宽度调制器，用于通过比较输入音频信号和参考信号来产生PWM信号;功率切换单元，用于根据由脉冲宽度调制器产生的PWM信号切换电压源;电流检测器，用于检测 由电力切换单元提供的电压源流过负载的电流信号;以及控制器，根据由电流检测器检测的电流信号的脉冲宽度，对不同的电流电平施加不同的限制值，并控制由 所述脉冲宽度调制器通过将所施加的限制值与由所述电流检测器检测到的电流信号的电流电平值进行比较。

公开(公告)号：US07952426B2

公开(公告)日：2011-05-31

申请号：US12090278

申请日：2006-10-24

申请人： Byoung-Min Mun

发明人： Byoung-Min Mun

IPC分类号： H03F3/38

CPC分类号： H03F3/2173 ,  H03F1/0227 ,  H03F1/303 ,  H03F1/307 ,  H03F1/34 ,  H03F1/52 ,  H03F3/217 ,  H03F2200/03 ,  H03F2200/351 ,  H03F2200/504 ,  H03F2200/541

摘要： A digital audio signal amplifier and a digital audio signal amplifying method provide safety and power efficiency by integrating a switching mode power supply and a digital audio amplifier into an apparatus. The digital audio amplifier includes a pulse modulation unit generate a pulse modulated audio signal by pulse-modulating an input audio signal, a switching unit to switch a DC voltage based on the pulse modulated audio signal, an insulation transformer to transform the output of the switching unit and to output the result of the transforming, and a low-pass filter to obtain an audio signal corresponding to the input audio signal by low-pass filtering the output of the insulation transformer, and to output the output audio signal. By integrating a switching mode power supply and a digital audio amplifier into an apparatus, the digital audio amplifier satisfies the insulation requirement and at the same time increases power efficiency.

摘要翻译： 数字音频信号放大器和数字音频信号放大方法通过将开关模式电源和数字音频放大器集成到装置中来提供安全性和功率效率。 数字音频放大器包括：脉冲调制单元，通过脉冲调制输入音频信号产生脉冲调制音频信号;开关单元，用于基于脉冲调制音频信号切换直流电压;绝缘变压器，用于转换开关的输出; 并且输出变换的结果，以及低通滤波器，以通过对绝缘变压器的输出进行低通滤波来获得与输入音频信号相对应的音频信号，并输出输出音频信号。 通过将开关电源和数字音频放大器集成到设备中，数字音频放大器满足绝缘要求，同时提高功率效率。

公开(公告)号：US07443235B2

公开(公告)日：2008-10-28

申请号：US11650944

申请日：2007-01-09

申请人： Byoung-min Mun ,  Hae-kwang Park

发明人： Byoung-min Mun ,  Hae-kwang Park

IPC分类号： H03F3/38

CPC分类号： H03F3/217

摘要： A digital audio system to store and reproduce a digital PWM signal and a method of processing an audio signal. The method includes; converting an audio source signal into a digital pulse width modulation (PWM) signal through a series of signal processing processes and storing the PWM signal in a separate storage medium, when an audio signal is reproduced, reading the digital PWM signal stored in the storage medium and decoding the signal into an analog PWM signal, and performing a power switching operation with the decoded analog PWM signal and extracting an audio signal.

摘要翻译： 一种用于存储和再现数字PWM信号的数字音频系统以及处理音频信号的方法。 该方法包括： 通过一系列信号处理处理将音频源信号转换为数字脉宽调制（PWM）信号，并且当再现音频信号时，将PWM信号存储在单独的存储介质中，读取存储在存储介质中的数字PWM信号 并将该信号解码为模拟PWM信号，并用解码的模拟PWM信号进行电源切换操作并提取音频信号。

公开(公告)号：US20070296489A1

公开(公告)日：2007-12-27

申请号：US11650944

申请日：2007-01-09

申请人： Byoung-min Mun ,  Hae-kwang Park

发明人： Byoung-min Mun ,  Hae-kwang Park

IPC分类号： H03F3/38

CPC分类号： H03F3/217

摘要： A digital audio system to store and reproduce a digital PWM signal and a method of processing an audio signal. The method includes; converting an audio source signal into a digital pulse width modulation (PWM) signal through a series of signal processing processes and storing the PWM signal in a separate storage medium, when an audio signal is reproduced, reading the digital PWM signal stored in the storage medium and decoding the signal into an analog PWM signal, and performing a power switching operation with the decoded analog PWM signal and extracting an audio signal.

摘要翻译： 一种用于存储和再现数字PWM信号的数字音频系统以及处理音频信号的方法。 该方法包括： 通过一系列信号处理处理将音频源信号转换为数字脉宽调制（PWM）信号，并且当再现音频信号时，将PWM信号存储在单独的存储介质中，读取存储在存储介质中的数字PWM信号 并将该信号解码为模拟PWM信号，并用解码的模拟PWM信号进行电源切换操作并提取音频信号。